Warmup Exercise 3: Jumping Jack, For a Major Muscle-Building Challenge, Try This 45-Minute Dumbbell HIIT Workout

Start standing with your feet hips-width apart and your arms at your sides. Jump your legs out as you simultaneously swing your hands out to the sides and

Warmup Exercise 3: Jumping Jack, For a Major Muscle-Building Challenge, Try This 45-Minute Dumbbell HIIT Workout

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Jumping jacks can be a great warm up and cardio exercise, but are you

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